| Abstrakt: |
Commercial energy drinks have high content of caffeine and sugar that can lead to various health problems. Spruce sprouts could have beneficial effects on human health. This research aims to prepare alternative energy drinks with less caffeine and sugar that are based on spruce sprout, cold brew, and fruit juice. In the study, three commercial energy drinks were used - RedBull original (RBo), RedBull zero sugar (RBzs), and RedBull Tropical fruits (RBt) - and three spruce sprout - cold brew energy drinks were prepared. The spruce sprout - cold brew energy drinks were - cold brew coffee 96.8% with spruce sprout juice 3.2% (SCB), cold brew coffee 25% with orange juice 71.8% and spruce sprout juice 3.2% (SCBo), and cold brew coffee 25% with apple-aronia juice 71.8% and spruce sprout juice 3.2% (SCBaa). All energy drinks were evaluated for their Vitamin C content, titratable acidity, pH, soluble solids, colour evaluation, total phenolic content, and anti-radical activity by DPPH. The results showed that Vitamin C increased significantly (p < 0.05) by 30 times in the spruce sprout - cold brew energy drinks (104-244 mg 100 g-1), compared to its content in commercial drinks (4.23-6.24 mg 100 g-1). Comparing the total phenolic content in commercial energy drinks (6.67-10.69 mg GAE 100 g-1), its content increased significantly (p < 0.05) by 20 times in the spruce sprout - cold brew energy drinks (128.46-253.93 mg GAE 100 g-1). In conclusion, spruce sprout - cold brew energy drinks could be considered as an alternative to commercial energy drinks. [ABSTRACT FROM AUTHOR] |
